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Sys Path Resp (Cattle (Bacterial (sequelae (sepsis/toxemia, chronic…

- - - - histophilus somni
        
        also polyarthritis
        
        fibrinous pleurites due to septicemia
      - Mannheimia heamolytica
      - Pasteurella multocida
    - - polyarthritis
      - chronic pneumonia
      - coagulation foci
      - cranioventral
    - - cranioventral consolidation and reddening
      - fibrinous exudate on pleura
      - interlobular septal edema
    - - sepsis/toxemia
      - chronic bronchopneumonia
      - abscessation
      - sequestrum formation
      - bronchiectasis
      - pleural adhesions
    - - reportable
      - caveating tubercles in lymph nodes
  - - - erosions of nasal, laryngeal and tracheal mucosa
      - mats of fibrin
    - - bronchointerstitial
      - rubbery texture (not as hard as bronchopneumonia)
  - - - within caudal lung lobe bronchi
  - - - lush pastures have lots of tryptophan
        
        rumen microbes convert it to 3MI
        
        3M! is converted to a toxic substance by type 2 pneumocytes
        
        interstitial/bronchointerstitial lung lesions
    - - diffuse interstitial pneumonia
      - obstruct pulmonary arterial flow
      - embolic pneumonia
- - - - inhalation
      - systemic infection of epithelial and lymphoid tissue
      - predisposes to bacterial pneumonia
      - signs
        
        respiratory dz
        
        encephalitis
        
        immunosuppression
        
        skin lesions
    - - diffuse interstitial pneumonia
      - multifocal necrosis of liver and kidney
      - puppies less than 6 weeks
  - - - cranioventral reddening/consolidation
    - - Vomiting
      - regurgitation
      - cleft palate
      - reduced swallowing rifles
  - - - focal plaques in nasal cavity
    - - granulomatous inflammation, multiple soft white nodules
      - inhalation
      - yeast
  - - - locally invasive and destructive growth
      - exophthalmus
- - - - lingual ulcers
    - - dry form
      - wet from
      - pleuritis
  - - - cysts that can be mistaken for tumors
      - typically asymptomatic
- - - - abortion/neonatal illness
      - neuropathy
  - - - purulent nasal discharge
      - swollen retropharyngeal and submandibular nodes
      - potentially
        
        bronchopneumonia
        
        bastard strangles
        
        guttural pouch empyema
    - - a gram positive bacteria present in soil
      - facultative intracellular that survives in macrophages
      - 2-6 month old foals
      - also colonic form and poly arthritis less commonly
      - cranioventral consolidation with multifocal pyogranulomas
  - - - histologically
        
        neutrophils and mucus in lumen of bronchioles
        
        lymphocytes and neutrophils in walls
        
        hypertrophy of bronchiolar smooth muscle
        
        goblet cells in small bronchioles
        
        edematous swelling
      - Bronchoconstriction and stuff in lumen
      - inhaled corticosteroids
      - a hypersensitivity not mediated by IgE
- - - - often subclinical
      - predisposes pigs to other infections
    - - doesn't need predisposing factors
      - severe lobar bronchopneumonia with fibrinous pleuritic in CAUDAL lung lobes
      - bloody nasal discharge
    - - bronchopneumonia
      - often a secondary infection
  - - - also cause repro failures
      - grossly diffusely firm/rubbery
      - allows secondary bacterial pneumonia
      - infects macrophages
    - - classified by hemagglutinin and neuraminidase
      - rapid spread of severe coughing
      - bronchointerstitial pneumonia